Did they practice high jump?
No, they didn´t.
Did he practice Discus?
yes, he did.
Did he practice High jump?
yes, he did.
Did they practice boxing?
yes, they did.
Did he practice javelin?
yes, he did.
Did he practice weightlifting?
yes, he did.
Did she practice discus?
No, she didn´t.
Did he practice wrestling?
no, he didn´t.
Did he practice boxing?
No, he didn´t.